This is an amazing tugboat! I have never seen one this large before. And I was puzzled by how high up the pilot house is. Wow! Why does that need to be so high. And here is the answer... I noticed a fuel barge across the harbor, and it had these huge slab-sided sides. The top of the barge must have been 25 feet above the water. Then it came to me - if this tug is pushing a barge that high, it would need to see over it in order to navigate. One other clue - if you enlarge this image, you can see that there is an extension ladder sticking up behind the pilot house. There are ladders on either side. They, too, are needed to get to the top of the barges they are pushing. Interesting stuff, right?
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